No abstract available.
Skin*

Polyvesicular vitelline tumor of the ovary is an extremely rare variant of yolk sac tumor. We present a case of pure polyvesicular vitelline tumor in a 43-year-old woman. Light microscopy revealed a predominantly polyvesicular pattern embedded in mesoblastic stroma with the cysts showing two type of lining; tall columnar and cuboidal, or mesothelioid cells. The lining atypical cells showed occasional mitoses and intracytoplasmic PAS positive hyaline globules. In some areas, the cystic space contained a large amount of intraluminal hyaline material. Immunohistochemically, alpha- fetoprotein and alpha-1-antitrypsin were detected as a fine granular deposit in the cytoplasm of epithelial cells and hyaline globules. Electron microscopically, marked specialization of the vesicular lining cells suggested a differentiation toward gut structures and mature yolk sac.
Adult ; Cytoplasm ; Endodermal Sinus Tumor ; Epithelial Cells ; Female ; Fetal Proteins ; Humans ; Hyalin ; Microscopy ; Mitosis ; Ovary* ; Vitellins* ; Yolk Sac

Polyvesicular vitelline tumor of the ovary is an extremely rare variant of yolk sac tumor. We present a case of pure polyvesicular vitelline tumor in a 43-year-old woman. Light microscopy revealed a predominantly polyvesicular pattern embedded in mesoblastic stroma with the cysts showing two type of lining; tall columnar and cuboidal, or mesothelioid cells. The lining atypical cells showed occasional mitoses and intracytoplasmic PAS positive hyaline globules. In some areas, the cystic space contained a large amount of intraluminal hyaline material. Immunohistochemically, alpha- fetoprotein and alpha-1-antitrypsin were detected as a fine granular deposit in the cytoplasm of epithelial cells and hyaline globules. Electron microscopically, marked specialization of the vesicular lining cells suggested a differentiation toward gut structures and mature yolk sac.
Adult ; Cytoplasm ; Endodermal Sinus Tumor ; Epithelial Cells ; Female ; Fetal Proteins ; Humans ; Hyalin ; Microscopy ; Mitosis ; Ovary* ; Vitellins* ; Yolk Sac

No abstract available.
Skin* ; Tissue Expansion Devices* ; Transplants*

Neoplasms showing both carcinomatous and sarcomatous features are well established, and have been reported in practically every organ where carcinoma can occur. But the difference in terminology and difficulties in histopathologic interpretation have hampered adequate understanding of these neoplasms. We report a case of carcinosarcoma in the recurrent form of serous cystadenocarcinoma of the ovary. The patient was a 64-year-old female who underwent total hysterectomy and bilateral salpingoophorectomy three years ago, due to perforated papillary serous cysta denocarcinoma of the right ovary. Recurrent pelvic masses contained both carcinomatous and sarcomatous components. Morphological transition between carcinomatous and sarcomatous components, and epithelial characteristics in the sarcomatous component by immunohistochemistry were recognized. We postulate the histopathogenetic mechanism based on the phenotypic conversion of carcinoma into sarcoma in the carcinosarcoma.
Carcinosarcoma* ; Cystadenocarcinoma, Serous* ; Female ; Humans ; Hysterectomy ; Immunohistochemistry ; Middle Aged ; Ovary* ; Sarcoma

A case of an ovarian mucinous cystadenocarcinoma with mural nodules of anaplastic carcinoma is reported. The patient was a 46-year-old female with a right ovarian cystic mass and underwent a total abdominal hysterectomy with bilateral salpingo-oophorectomy. The patient died of the disease in five months. Macroscopically, the right ovarian cyst wall contained numerous well-demarcated mural nodules. Histologically, the cysts were mucinous cystadenocarcinoma, and the nodules were composed of sarcoma-like spindle and polygonal cells with atypia and numerous mitoses. Spindle cells in the mural nodule showed epithelial characteristics by electron microscopy and immunohistochemistry. This case supports an epithelial origin of the mural nodule of anaplastic carcinoma in ovarian mucinous tumors.
Carcinoma* ; Cystadenocarcinoma, Mucinous* ; Female ; Humans ; Hysterectomy ; Immunohistochemistry ; Microscopy, Electron ; Middle Aged ; Mitosis ; Mucins* ; Ovarian Cysts ; Ovary

No abstract available.

Temporal arteritis is one of the most important causes of headache. If it is not recognized properly, patients might get werious complications such as blindness or stroke. Hence, early diagnosis and treatment with steroid are critical While temporal arteritis is frequently seen in western countries, it seems to be rare in Korea and is not reported in Korean literatures except one case report of the giant cell arteritis of the breast (1991). We report two patients, 66 and 75 years old males, who presented with 3 months history of throbbing headache in temporal regions. Erythrocyte sedimentation rate was accelerated in both cases. Superficial temporal artery was biopsied to reveal intimalthickening, elastic lamina fragmentation and a mild inflammatory cell infiltration. The patients responded dramatically to steroid therapy.
Aged ; Blindness ; Blood Sedimentation ; Breast ; Early Diagnosis ; Giant Cell Arteritis* ; Headache ; Humans ; Korea ; Male ; Stroke ; Temporal Arteries

No abstract available.
Scimitar Syndrome*

Since early 1980's high resolution ultrasound has been world-widely used for detection of cranial lesions ininfants but not widely used in korea. Authors prospectively analysed ultrasonographic findings of 107 cases whichwere confirmed by CT, autopsy or follow-up studies as supplement. the distribution of 107 cases was intracranialhematoma 40 cases, hydrocephalus 36 cases, hypoxic-ischemic encephalopathy 10 cases, porencephalic cyst 5 cases,cephalhematoma 5 cases, agenesis of corpus callosum 4 cases, medulloblastoma 2 cases and each one case of A-Vmalformation, intraventricular cyst, Dandy Walker cyst, lipoma and hydranecephaly. We could conclude thatneurosonography of infants was very useful and effective method in detection of cranial lesions such asintracranial hematoma, especially germinal matrix hemorrhage or intraventricular hemorrhage in preterm infant,hydrocephalus, hypoxic-ischemic encephalopathy and congenital anomalies.
Agenesis of Corpus Callosum ; Autopsy ; Follow-Up Studies ; Hematoma ; Hemorrhage ; Humans ; Hydrocephalus ; Hypoxia-Ischemia, Brain ; Infant ; Korea ; Lipoma ; Medulloblastoma ; Methods ; Prospective Studies ; Ultrasonography ; Walkers